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Tips & Tricks

Use WordPress to print a RSS feed for Eventbrite attendees

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Today I was working on the WordCamp.LA site. I was trying to show the “attendee list” on the attendees page with out having to update the page every day.

Since I am using EventBrite to promote and sell ticket to the event I can collect info from there list. Evey one who purchases a ticket gets put into the ticketed database which you can view with either RSS or OPML.

I chose to use RSS and the WordPress core file rss.php.

In the functions.php file I’ve added this function:

function attendee_feed_print_2009() {
	global $wpdb;
		include_once( ABSPATH . WPINC . '/rss.php' );
		$rss = fetch_rss( 'http://www.eventbrite.com/rss/event_list_attendees/384870157' );
		$items = array_slice( $rss->items, 0 );

Where I’ve named my function, and included the core RSS file from WordPress. I also told it to fetch the feed from the address (alternatively you can use any feed link you like).

if ( empty( $items ) ) echo '<ul style="list-style-type: none; list-style-image: none; list-style-position: outside;"><li>No items</li></ul>';

 else

 foreach ( $items as $item ) : ?>
 <ul style="list-style-type:none; list-style-image:none; list-style-position:outside; margin-bottom: 0px">
 <li><!--<strong><?php echo $item[ 'title' ]; //User name ?></strong><br />-->

 <?php echo $item[ 'content' ][ 'encoded' ]; ?>

 <hr style="border: 1px solid #ddd; margin-bottom: 8px" />
 </li>
 </ul>
 <?php endforeach;

I then added the core style to fit this current feed.

And the final out come looks like this:

function attendee_feed_print_2009() {
 global $wpdb;
 include_once( ABSPATH . WPINC . '/rss.php' );
 $rss = fetch_rss( 'http://www.eventbrite.com/rss/event_list_attendees/384870157' );
 $items = array_slice( $rss->items, 0 );
 if ( empty( $items ) ) echo '<ul style="list-style-type: none; list-style-image: none; list-style-position: outside;"><li>No items</li></ul>';

 else

 foreach ( $items as $item ) : ?>
 <ul style="list-style-type:none; list-style-image:none; list-style-position:outside; margin-bottom: 0px">
 <li><!--<strong><?php echo $item[ 'title' ]; //User name ?></strong><br />-->

 <?php echo $item[ 'content' ][ 'encoded' ]; ?>

 <hr style="border: 1px solid #ddd; margin-bottom: 8px" />
 </li>
 </ul>
 <?php endforeach;
}

Don’t forget to wrap the code in <?php ?>

I want to thank John Kolbert for helping me with printing the content:encoded portion. http://pastebin.com/m1588fb30

See it in action: http://wordcamp.la/attendees/

Tips & Tricks

Can′t add pagination on WooThemes Thick Theme

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Everything I have tried has led to nothing. And I have tried six way’s from Sunday to get my main posts to paginate.

example one:

<?php $paged = (get_query_var('paged')) ? get_query_var('paged') : 1; 
query_posts('offset=1&showposts=' . get_option('woo_other_entries') . '&cat=-' . $GLOBALS['ex_asides'] . '&paged=$paged' ); ?>

example two:

<?php 
global $myOffset; 
global $wp_query;
$myOffset = 1;
$paged = intval(get_query_var('paged')) ? get_query_var('paged') : 1;
$temp = $wp_query;
$wp_query= null;
$wp_query = new WP_Query();
$wp_query->query(array(
	'offset' => $myOffset,
	'category__not_in' => array($GLOBALS['ex_asides'],7,84),
	'paged' => $paged,
	'showposts' => get_option('woo_other_entries'),
	)); ?>

example three:

<?php 
global $myOffset;
$myOffset = 1;
$wp_query = new WP_Query();
$wp_query->query(array(
	'offset' => $myOffset,
	'category__not_in' => array($GLOBALS['ex_asides'],7,84),
	'paged' => $paged,
	'showposts' => get_option('woo_other_entries'),
	)); ?>

And after those tries, I just can’t get more pages beyond the option’s that I choose, and can only pull an archive via the browse more link.

Any suggestions or anything?

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Tips & Tricks

Pulling custom fields from outside the loop

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In the last post “Creating a custom widget” I showed you how to create a custom widget. Well in this post I will show you how I used my custom widget to display all post with a certain custom field from outside the WordPress loop.

In the last post I used this tag:

<?php include(TEMPLATEPATH . '/includes/showcase.php'); ?>

Now I will show you what the file showcase.php has:

<ul>
<?php
global $wpdb;

$sql = "SELECT wposts.*
	FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta
	WHERE wposts.ID = wpostmeta.post_id
	AND wpostmeta.meta_key = 'gallery-url'
	AND wposts.post_status = 'publish'
	AND wposts.post_type = 'post'
	ORDER BY wposts.post_date DESC LIMIT 8";

$pageposts = $wpdb->get_results($sql, OBJECT);
$output = $pre_HTML;

foreach ($pageposts as $post) : setup_postdata($post);  ?>

<li><a href="<?php echo get_post_meta($post->ID, "gallery-url", $single = true); ?>" title="Link to <?php the_title(); ?>">
<img src="<?php echo get_post_meta($post->ID, "image", $single = true); ?>" alt="<?php the_title(); ?>" /></a></li>

<?php endforeach; ?>

</ul>

That’s it! The most important item you may want to change for your own custom field is the line : AND wpostmeta.meta_key = 'gallery-url'. Where you would change the text in bold to match your own custom field value.

Update:

Check out Austin from PressedWords comment below.

With his great advise I was able to figure out why all my attempts to use the query_post weren’t working. it came down to this line of code: <?php echo get_post_meta($post->ID, "gallery-url", $single = true); ?>, that was what I had in my code, and the $post->ID is the reason my code would not echo or print the custom field’s value. Solution? replace $post->ID with get_the_ID(). HA, so simple.

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Tips & Tricks

Creating a custom widget

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Today let’s learn a simple quick trick on how to create a custom widget. For my example I will show you how I created my Showcase widget located in the middle, to the right of the posts.

First under your functions.php file type in the following:

<?php // Custom Widget
function MyCustomWidget() { ?>
<li class="widget">
    <h2 class="heading">Latest Showcase</h2>
        <ul>
        	<?php include(TEMPLATEPATH . '/includes/showcase.php'); ?>
        </ul>
</li>

<?php }

register_sidebar_widget('The Custom Widget for Showcase', 'MyCustomWidget'); ?>
  • Always make sure your code is between the <?php and ?> for it to work.
  • Once we call the function, the rest is assuming html code that you may or may not need.
  • For instance, you may just put in a picture and call it a day. But my code starts with <li< because my sidebar’s start and end with <ul<.
  • Any way, once your done, just set the final “register_sidebar_widget('the widget title', 'the name of the function');

That’s it! Now you have a custom widget with what ever you want!

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